Window-ventilator.



C. R. A.- LONG.

WINDOW VENTILATOR. v -APPUCAT|0N FlLED DEC-17.1817.

Patented Apr. 15,1919.

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13 I 3 ll 9 WITNESS. INI/E/VTUR MQ-Q W By M A TTOBNEYS C. R. A. LONG.

WINDOW VENTILATOR.

APPLICATION FILED DEC-17.1917- 1 ,300,85()', v Patented Apr. 15 1919.

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L O Q- m .L O n m WITNESS, 1 INVENTOR WW 736M mag CHARLES R; A. LONG, 01? INDIANAroLIs, INDIANA.

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To all whom it may concern:

Be it known that I, CHARLES R. A. Lone, a citizen'of the United States, residing at Indianapolis, Marion county, and State of. Indiana, have invented and discovered certain new and useful Improvements in Window-Ventilators, of which the following is a specification.

My inventlon relates to window ventilators, and its objects are to provide means to enable the ventilator to be applied to windows of different widths within a certain range; to provide means whereby the ventilator may be securely mounted in position without the use of screws, bolts or other means of attachment, and 'Whereby the window itself aids in holding theventilator tightly in position; to provlde a construction whereby the admission of air is prevented except through the ventilating openings and whereby in the use of the ventilator it is not necessary to leave a space between the upper rail 'of the lower sash and the lower rail of the upper sash with the consequent admission of an undesirable current of air; to provide means whereby the rain and snow are effectually prevented from entering the room through the ventilator; to provide means whereby the ventilator openings may be closed or partially closed when desired, and to provide a construction wherewhereby the light space of the window will not be substantially interrupted while at the same time sufficient ventilation is afforded, particularly during the fall, spring and winter months.

\Vith these objects in view, my invention is embodied in preferable form in the con-, struction and arrangement hereinafter described and illustrated in the accompanying drawings.

In these drawings, Figure 1 is an interior front view in elevation of the lower part of a window showing the improved ventilator applied thereto; Fig. 2, a vertical section at Referring to the drawings, 1 indicates a facing piate of sheet metal which is adapted to lie in a vertieal plane and the lower edge Specification of Letters Patent.

Patented Apr. 15, 1919.

' Application filed December 17, 1917." Serial No. 207,498.

of which is adapted to rest upon or project above the ledge of the window just outside the sill. This plate is approximately two and one-half inches in'height, and it constltutes a spacing-member determining the extent of separation of the lower rail ofthe sash from the sill This plate is provided with a series of air entrance openings 2, covered by screens 3 through whichthe air is admitted from the outside to the interior of the ventilator. These admission openings are preferably formed by spaced holes in order that the strength of the plate maybe retained. Projecting from the inner face of therein, is a metallic block or shell 3 consist- Y the facing plate and covering the openings 2 ing of a single piece of metal bent into substantially U-shape form with the inner longitudmal edges of said block bearing against the'surface of the face plate and spaced from the upper and lower borders thereof, so as to form with the latter a chamber for admitting and deflecting the air and catching and deflecting the rain and snow.

This block is secured tothe facing plate by being nailed or screwed to three plugs or blocks of wood 4 which in turn are secured to the face plate by means of screws 5. The two end plugs constitute closure members for the ends of the block or shell. The upper surfaces of these plugs are slightly spaced from the inner surface of the top wall of the block to provide a slight recess or channel in which is slidably mounted a regulating cut off gate or lid 6 consisting of a flat bar extending longitudinally of the block and having its ends projecting beyond the same whereby it may be manipulated. The said top wall of the block or shell 3 is provided with a series of air exit openings 7 whereby communication is established between the atmosphere and the interior of the room through said openings and the outside openings 2. The block rests upon the sill and thus supports the ventilator, and the onehalf inch border portion of the facing plate below the holes 2 projects down parallel with the sill drop. This border portion is made of the standard width employed for ventilators for all windows and is therefore capable of application .to any height of sill drop without causing tilting of the ventilator.

Within the chamber of the block and held therein by engagement the wood-en plugs is a rain and snow deflector consisting of an inwardly and upwardly inclined plate 8 extending from a line below the lower extremities of the openings 2 toward the rear vertical wall of the block and terminating short of said wall so that any rain or snow which may enter through the openings 2 will be deflected by this plate and will fall either into the space between the outer edge of the plate and the facing plate or between the inner edge of the same and the sa-idinner wall of the block-andpass through a slight space between the edge of the lower horizontal wall of the block and the facing plate 1 and thence to the outer ledge of the sill.

Mounted upon each end of the facing plate 1 is a longitudinally slidable extenslon plate 9 which constitutes means whereby the ventilator may be extended or contracted to permit it to be adjusted to windows of different Widths and also constitutes frictional retaining means whereby the ventilator is adapted to be gripped or pressed against by the window sash in order not only to lock the ventilator firmly in place but also to serve as a limiting stop for the window sash in order to determine the extent of downward movement of the latter and thus locate the bottom rail of the sash relatively to the ventilator openings when the ventilatoris in place. These extension members consist of flat plates of metal, the surfaces of which bear closely against the outside surfaces of the facing plate 1 and which are provided with inwardly turned flanges 10 and 11 at the upper and lower borders thereof respectively, adapted to overlap the plate 1 and to bear against the inner surface of the latter, These flanges are shorter in width than the space between the upper edges of the plate 1 and the upper and lower horizontal walls of the block 4 whereby the extension members may be telescoped upon the facing plate to a point beyond the outer ends of the block, whereby a relatively long extension may be utilized. The upper flange 10 of each extension member is cut away fora short distance from the end of said member at 12, in order to leave at this space merelythe thickness of the body of the member in order to permit the entrance thereof into the casing channel between the ,cas'ing rails and the sash ra l.

In the application of the ventilator to a window the extension members having been retracted or extended to fit the window between the outer walls of the sash casings 13 formed by the two fixed jamb rails within which the sash slidesQthe window is raised and the ventilator placed on the sill with the block resting upon the inner sill and the edge of the facing plate 1 abutting against the vertical edge of the inner member and bearing upon the outer sill or ledge, and with the ends. of the facing plate or the ends of the extension members, if the latter are projecting beyond the facing plate, fitting in the casing channels adjacent the front fixed jamb rails thereof. The cut away portions of the upper flange 10 of the extensions permit the extension members to fi t flush against said fixed jamb rails. In this position the lower flange will be inside the jamb rail of the casing and the double edge at the out off end of the upper flange of the extension adjuster will bear against the edge on such casing jamb rail thus slightly tilting the facing plate so as to provide a wedging action for the sash. The sash is then moved down until the lower rail thereof contactswith the outside surface of the facing plate land is firmly pushed down until it moves to a point beyond the width of the upper flange, whereupon it will frictionally grip the facing plate with a slight wedging action and firmly retain the ventilator inposition between the casing and the sash and at the same time limit the further downward movement of the sash seem the bottom surface of the latter will be above the upper borders of the openings 2 in the facing plate. The air will then enter from the outside through the openings 2 and 7 into the interior of the room.

Owing to the fact that the support for the ventilating chamber'block, which also constitutes the means for retaining the device in position by engagement with the sash, consists'merely of'a flat plate lying in a vertical plane and the lower border of which extends below the shoulder of the sill while the upper border thereof permits the sash to pass down'overa portion of its surface in the frictional engagement thereof with the ventilator,'it will be seen thatit is possible to provide a ventilator of such a short height relatively to the width of the top rail of the lower sash and the lower rail of the upper sash that'when the ventilator is in'position and thewindow fitting thereon, the said adjacent rail members of the upper and lower sasheswill still maintain an overlapped position, thus preventing the admission of air between them, which admission in the use of ventilators heretofore employed has been an objection Owing to the fact that the central meeting rails of the sash are in constant overlapped position, due to the short height of the face plate abovethe level of the sill and the overlapping position of the lower sash rail and plate, no air at all is admitted between such central meeting rails, and the only point of admission therefor is through the ventilator itself where the volume of air admitted may be controlled by the regulating means above described applied directly to the ventilator. This positive control of the admission of air past the window has not been heretofore practicable of accomplish ment in the use of ventilators.

Should it be desired to entirely cut off the air openings of the ventilator, as during excessively' cold weather, the sliding lid member 6 may be moved up so as to close the air exit openings 7.

It will be seen that the ventilator may be easily and quickly applied to any sliding window sash without the use of screws, nails or similar means of attachment.

Having thus described my invention, what I claim is 1. A window ventilator adapted to be mounted between the sill and the lower edge of the window sash and having a facing plate lying in a vertical plane and operable to space the sash above the sill, said ventilator having 'a hollow air receiving and defleeting member on the inside of said facing plate and spaced from the upper and lower borders thereof and provided with apertures to admit air from the atmosphere to the interior of the room, said hollow member be ing adapted to bear on the sill with the lower border of the plate proj ecting down parallel with the drop and said facing plate mounted to extend into the sash casings to between the front face of the lower rail of the sash and front beading of the jamb when the former is pushed down whereby the ventilator is maintained in fixed position by the frictional ngagement of said rail against the surface of said plate.

2. A window ventilator adapted to fit between the lower end of the sash and sill and provided with a facing and spacing plate lying in a. vertical plane, said plate being provided with apertures for the admission of air, ahollow apertured block 011 the inner face of said plate providing a chamber communicating with the apertures in the latter, and longitudinally slidable members mounted on the ends of said plate and telescoping therewith and having retaining means overlapping the border portions of the inner surfaces only of the plate and of a width to permit of the inward projection of the extension members beyond the ends of the block, said extension members being adapted to fit within the sash casings and be engaged between the front face of the lower rail of the sash and front beading of the jamb so that the ventilator will be thereby clamped into position.

3. A window ventilator adapted to be mounted between the sill and lower edge of the window and comprising a spacing plate lying in a vertical plane, said plate being provided at each end with a fiat extension member adapted to telescope upon the plate, said member having flanges bearing against the inner surface of said plate and having one of said flanges terminating short of the end of the member, said extension members being adapted to project within the sash sash is limited and the ventilator clamped in position. 1 a

4. A window ventilator adapted to be insorted between the sill and the lower end of the window sash and comprising a facing plate of thin cross section lying in a vertical plane, said plate having means extending into the sash casings for frictional clamping engagement between the front face of the lower rail of the sash, an inner beading of the jamb, said plate being provided with air admitting openings, a hollow apertured supporting block mounted on the inner face of said plate and substantially U shape in cross section, said block being spaced from the upper and lower borders of the facing plate and plugs closing the ends of said block and constituting means whereby the block and plate may be connected.

5. A window ventilator having a thin facing and spacing plate lying in a vertical plane and provided with apertures for the admission of air, said ventilator being clamped into position by the engagement of the plate between the front face and the lower rail of the sash and the inner beading of the jamb, ahollow block on the inner face of said plate provided with apertures for the exit of air into the room beyond the window and secured on the inner face of said plate, said block providing a hollow chamber for deflecting the air and catching the rain and snow, and a deflecting plate within said chamber upwardly and inwardly inclined from the facing plate and terminating short of the rear wall of said block.

6. In combination with a window includ ing its sash, a ventilator adapted to be interposed between the lower end of the sash and the sill and having a spacing and facing plate lying in a vertical plane outside the sill dro said plate having the ends thereof adsgwte to enter the sash guidin casings, sai plate being apertured for t e admission of air and having a border portion above said apertures WlllCll 1S engaged between the front face of the lower rail 'of the 7 window sash and the inner heading of the jamb'inthe'downward movement of the window to frictionally retain the ventilator in place and limit the movement of the win dow, the approximate height of said plate fromthe plane of support of the ventilator tothe upper borders'of the apertures being not gieater than the width of the meeting rails aldng the upper border of the lower sash-and the lower border of the upper sash whereby an overlapping relation'of the said upper rails will be'maintained when the ventilator is in place.

7. A window ventilator having a hollow member projecting inwardly beyond the window and constituting an air receiving and 'defleeting Chamber having with a "series of air exit-openings in its upper horizontal wall a- 'slidable closed bar constituting a regulating member forsaid apertures mount ed in'the chamber below said herizental wall, supports in said member at the ends thereof on which said member is mounted for slidable movement, said member being of less width than said horizontal Wall and capable 0fin0veinent from iront to rear of theeasing to'openor clo'ee s' aid apertures, said bar having iteends'extending freely "beyond the ends of said chamber whereby it may he man-1p lated 'to eifectsazid forward and rearward ad jiistment;

In witness whereof, I have hereunto set my hand and seal at Indianap01i's, I diana, this 12th day" of December, A Di nineteen hundred and eventeen. I

v CHARLES R. AVLONG; [me] Witnesses:

H. P. DOOLITTLE, M. L.

copies of this patent may be obtained for fivece'ncs each, by addressing the bbiimis'sfoner -o1'1'fitei1ta,

Washington, D. 0. 

